[argszero]

Summary

Rewrite docs/user-stories.md from v1.4 to v1.5 (Chinese) per host rant 2026-08-14T21:37:22 (用户故事文档改用中文撰写).

Changes (language only — no mechanism changes, content identical to v1.4):

• Document header: version bumped to v1.5, notes "本文档以中文撰写"
• Full body rewritten in Chinese: product model, role definitions, user stories, key flows, edge cases, alignment table
• User stories now use the Chinese template 「作为〈角色〉，我希望〈能力〉，以便〈价值〉」, AC in Chinese
• Key terms kept bilingual: 点数 Points, Key 池 Key pool, 上架 Listing, 消费 Consumption, 收益 Earnings, API Key, etc.
• Mermaid flowcharts preserved with Chinese labels
• All v1.4 mechanisms preserved: daily gift 1 pt / 1-day validity / 10 consecutive days (E-13, E-14), earned & top-up permanent, gift-first deduction, operator role (US-运营1/2)

Related Issue

No issue — host rant 2026-08-14T21:37:22 (argszero/aitokenpool).

Changes

• 功能/修复说明：docs/user-stories.md rewritten in Chinese (v1.5)
• 涉及配置/数据结构的改动已同步示例文件：N/A — docs only

Tests

• cargo test 全部通过 (1 passed)
• cargo fmt --check 通过
• 新增/更新了单元测试（如适用）：N/A — docs-only change

Checklist

• 分支命名符合约定：docs/user-stories-zh
• Commit message 使用 Conventional Commits：docs: rewrite user-stories in Chinese (v1.5)
• 单一职责，改动最小化